Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Integrate doctor-test package"
  - Integrate doctor-test package

    It updates tescases.yaml as run.sh is located in $PATH.
    repo_doctor is removed as it's now useless.

    It must be noted that doctor-test imports modules fom a relative path
    which can break the integration. Pylint warms them (W0403) [1].

    [1] https://docs.pylint.org/en/1.6.0/features.html

    Co-Authored-By: Cédric Ollivier <cedric.ollivier@orange.com>
    Change-Id: Icd3071a8e371048370bd3e07e08b6b52ddb35c13
    Depends-On: I2091cfe4751640bf83d77e1fdd713af1e31fa89d
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index cbb6443..95b37a9 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit cbb64439160caa48d5725b3ee8be0023103a9ec7
+Subproject commit 95b37a93c609e5a0ec2c1deb4c791fb55eb6f057